42-439-33682

PRODUCING Horizontal

ERVIN UNIT

TARRANT County · District 9 · UPP OPERATING LLC · NEWARK EAST (BARNETT SHALE)

Permits

4

Max Depth

9,000 ft

First Permit

2008-09-02

Latest Activity

2009-04-03

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2010-04-26

Shut-In

Plugged

P-5 Org Status: Active

!

EWA / Permit operator mismatch

Scheduling: UPP OPERATING LLC ≠ Permit: CARRIZO OIL & GAS, INC.

Resolved via: productionUPP OPERATING, LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2009-03

Last Production

2026-07

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Formation Tops (7) Elevation 610 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
BASE CRETACEOUS (Base Cretaceous (marker))1,950 ft-1,340 ft
BASE OF CRETACEOUS (Base Cretaceous (marker))1,950 ft-1,340 ft
BASE OF CRETACEOUS (Base Cretaceous (marker))1,950 ft-1,340 ft
BEND CONGLOMERATE (Bend)7,506 ft-6,896 ft
BEND CONGLOMERATE (Bend)7,650 ft-7,040 ft
TOP BARNETT SHALE (Barnett)8,093 ft-7,483 ft
TOP BARNETT SHALE (Barnett)8,303 ft-7,693 ft

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Perforations (1)

IntervalType
8,833–11,265 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"2,148 ft560 sx
5.5"11,416 ft1,132 sx

Permit History (4)

Applications (4)

#668800 A CARRIZO OIL & GAS, INC.
received 2009-12-03
#668800 A CARRIZO OIL & GAS, INC.
received 2009-04-02
#668800 A CARRIZO OIL & GAS, INC.
received 2009-01-06
#668800 A CARRIZO OIL & GAS, INC.
received 2008-08-11

Records & Logs

4 completion filings on record · 3 with log images at RRC.

W-2/G-1 2011-02-08 log on file
W-2/G-1 2011-02-08 log on file
W-2/G-1 2009-05-11 log on file
W-2/G-1 2009-09-21

Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in TARRANT County.

Well Details

Well Number
1H
Max Depth
9,000 ft
Drill Type
Horizontal
County
TARRANT
District
9
Completed
2010-04-26

Operator

Location
HOUSTON
P-5 Status
Active (filed 2026-03-06)
Cum Oil (all leases)
293,241 bbl
Cum Gas (all leases)
486,804,996 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/G, OPRS/G, OPRS/O
Total Permits
33